Advanced Organic Synthesis Experiments

Isac‐García, Joaquín

doi:10.1016/b978-0-12-803893-2.50009-7

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…This result may be inuenced by the Hofmann decomposition of ammonium, which modies cations in hectorite. 54 This modication of cations in hectorite leads to the formation of acid sites within the clay structure. These acid sites can then act as catalysts for the decomposition of the polymer matrix.…”

Section: Thermal Propertymentioning

confidence: 99%

Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite

Kim,

Lee,

Choi

et al. 2023

RSC Adv.

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Section: Thermal Propertymentioning

confidence: 99%

Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite

Kim,

Lee,

Choi

et al. 2023

RSC Adv.

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Microsphere molecularly imprinted solid-phase extraction for diazepam analysis using itaconic acid as a monomer in propanol

et al. 2021

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Diazepam (DZP) is a benzodiazepine drug used as an anti-drug and sedative. It is often misused to induce or create euphoria in combination with other drugs (high or fly sensation) or administered alone. So far, screening for DZP abuse with sensitive analytical methods is needed, as its small concentrations make it difficult to detect. Increased sensitivity of the analytical method can be obtained by using a preparation method that selectively separates the analyte from the sample matrix. Molecularly imprinted polymer (MIP) is one of the preparation solutions with good selectivity, specificity, and sensitivity. MIP was made from DZP as a template, itaconic acid, and ethylene glycol dimethacrylate in a composition of 1:4:20. MIP was made by precipitation polymerisation to obtain microsphere polymer type. MIP had a binding capacity value of 0.0557 mg/g and followed the Freundlich isotherm. Application of the microsphere MIP on spiked blood serum resulted in a recovery of 105.63 ± 1.0% for MIP compared to 21.28 ± 0.4% for non-imprinted polymer, with the imprinting factor value reaching 4.96. Hence, MIP DZP with itaconic acid as a functional monomer and propanol as a porogen, fabricated by the precipitation polymerisation method, is a promising sorbent for DZP extraction in biological fluids.

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The Analysis of Correlations Between Terpene Transformations and Fermentation Type of Apple Musts

Januszek

Wajda

2022

Acta Universitatis Cibiniensis. Series E: Food Technology

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We measured the concentration of 13 terpenes in musts of 3 different apple cultivars fermented spontaneously, with Ethanol RED yeast (Saccharomyces cerevisiae) or Cider Yeast (Saccharomyces bayanus). Then we analysed obtained data with PCA with various packages in R to assess how different types of fermentation and apple cultivars affected terpene profile. The most informative results of PCA were obtained in ‘psych’ package and they indicated that there were groups of terpenes which concentrations increased simultaneously, while for some other groups the content of particular compounds was negatively correlated. This suggests that the first group of terpenes originated from different substrates while the latter group could be obtained from the same compound. Our findings indicated new possible pathways of terpene transformation, e.g. linalool, citral and geraniol could transform into one another. Moreover, the role of S. bayanus in those processes remains unclear and it requires further consideration.

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Advanced Organic Synthesis Experiments

Cited by 3 publications

References 20 publications

Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite

Colorless and transparent poly(amide imide) nanocomposites containing organically modified hectorite

Microsphere molecularly imprinted solid-phase extraction for diazepam analysis using itaconic acid as a monomer in propanol

The Analysis of Correlations Between Terpene Transformations and Fermentation Type of Apple Musts

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